1 /*

     2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:   Seek or trickplay

    15  *

    16 */

    17 

    18 // Version : %version: 3 %

    19 

    20 

    21 

    22 #ifndef _MPXVIDEOSEEKER_H

    23 #define _MPXVIDEOSEEKER_H

    24 

    25 //  INCLUDES

    26 #include <e32base.h>

    27 

    28 #include "mpxhelixplaybackplugindefs.h"

    29 

    30 // FORWARD DECLARATIONS

    31 class CMPXVideoPlaybackController;

    32 

    33 // CLASS DECLARATION

    34 NONSHARABLE_CLASS(CMPXVideoSeeker) : public CBase

    35 {

    36     public:  // Constructors and destructor

    37         

    38         /**

    39         * Two-phased constructor.

    40         */

    41         static CMPXVideoSeeker* NewL( CMPXVideoPlaybackController* aVideoPlaybackCtlr );

    42         

    43         /**

    44         * Destructor.

    45         */

    46         virtual ~CMPXVideoSeeker();

    47 

    48     public: // New functions

    49         

    50         /**

    51         * Start seeking

    52         * @param aForward Seeking direction

    53         * @param aClipLength Clips length

    54         * @return void

    55         */

    56         void StartSeekingL( TBool aForward,

    57                             TMPXVideoPlaybackState aState,

    58                             TInt64 aPosition,

    59                             TInt64 aDuration );

    60 

    61         /**

    62         * Stops seeking

    63         * @return void

    64         */

    65         void StopSeekingL();

    66         

    67     private:

    68 

    69         /**

    70         * C++ default constructor.

    71         */

    72         CMPXVideoSeeker( CMPXVideoPlaybackController* aVideoPlaybackCtlr );

    73 

    74         /**

    75         * By default Symbian 2nd phase constructor is private.

    76         */

    77         void ConstructL();

    78 

    79     private:

    80 

    81         /**

    82         * Timer callback for stopping trick play

    83         * @return KErrNone

    84         */        

    85         static TInt StopTrickPlay( TAny* aPtr );

    86 

    87         /**

    88         * stop trick play after 5 sec

    89         * @return void

    90         */        

    91         void DoStopTrickPlay();        

    92 

    93         /**

    94         * convert to seeking from trick play

    95         * @return void

    96         */  

    97         void ConvertToSeeking();

    98 

    99         /**

   100         * Timer callback for updating position info

   101         * @return KErrNone

   102         */        

   103         static TInt UpdatePosition( TAny* aPtr );

   104 

   105         /**

   106         * Update position info

   107         * @return void

   108         */        

   109         void DoUpdatePosition();

   110 

   111     private:    // Data

   112         

   113         TBool                        iForward;

   114         TMPXVideoPlaybackState       iPreviousState;

   115 

   116         TInt                         iIncrements;

   117         TInt64                       iPosition;

   118         TInt64                       iDuration;

   119 

   120         CPeriodic*                   iSeekTimer;

   121         CPeriodic*                   iTrickPlayTimer;

   122 

   123         CMPXVideoPlaybackController* iVideoPlaybackCtlr;

   124 };

   125 

   126 #endif      // _MPXVIDEOSEEKER_H

   127             

   128 // End of File